These 31mm props are just customed for 65mm brushless drones that has 1.0mm motor shaft. The recommended motor is 0603 motor, 0703 motor and 080X motor like 0802 motor. Here is the 31mm 3-blade props (1.0mm Shaft) for your choice.

Specification

• Item: 31mm 4-blade Props 
• Material: PC
• Center Thickness: 5mm
• Prop Disk Diameter: 31mm
• Center Hole Inner diameter: 1.0mm
• Prop Width: 5.71mm
• Weight: 0.31g
• Colors: Blue / White

Recommended Parts

• Drone: Beta65X / Beta65 Pro 2 / Beta65 Pro / Meteor65
• Frame: Beta65 Pro frame / Beta65X 2S frame / Meteor65 frame
• Motor: 0603 motors / 0802 motor / 0703 motor

Package

• 2 * CW 31mm 4-blade Micro Whoop Propellers (1.0mm Shaft)
• 2 * CCW 31mm 4-blade Micro Whoop Propellers (1.0mm Shaft)